| A | B |
|---|
| Melting | - process by which a substance changes from its solid state into its liquid state |
| Melting point | the temperature at which a substance changes from its solid state into its liquid state through melting |
| Freezing | the process by which a substance changes from its liquid state into its solid state |
| Freezing point | the temperature at which a substance changes from its liquid state into its solid state through freezing |
| Evaporation | process by which a substance changes from its liquid state to its gas state by random particle movement – usually occurs at the surface of a liquid over a wide range of temperatures. |
| Boiling | a process by which a substance changes from its liquid state to its gas state. The liquid is heated until bubbles of vapor form within the liquid. |
| Boiling point | the temperature at which a substance changes from its liquid state to its gas state through boiling. |
| Condensation | The process by which a gas becomes a liquid |
| Conduction | the process by which energy is transferred from a warmer object to a cooler object by means of physical contact. |
| Convection | A process by which energy is transferred in gases and liquids, occurring when a warmer, less dense area of gas or liquid is pushed up by a cooler, more dense area of the gas or liquid |
| Radiation | energy that can be transferred across distances in the form of electromagnetic waves. |
| Conductor | A material that transfers energy easily. |
| Insulator | A material that does not transfer energy easily. |
